Drivers of the Budweiser Clydesdale horses take a quick break before heading down the street to kick-off the Annual Mayor's Ride during the 74th Annual Motorcycle Rally on Monday, Aug. 4, 2014. Organizers expect attendance at this week's Sturgis Motorcycle Rally to top the estimated 466,000 who made the annual trek last year. The 74th rally starts Monday and runs through Sunday. (AP Photo/Toby Brusseau) Toby Brusseau AP

Lance Armstrong, right, poses with fan Kim Du Hueck of Spearfish, at Sturgis Coffee Company, Monday morning, August 4, 2014. Armstrong rode as the Official Grand Marshall in the Annual Mayor's Ride during the 74th Annual Motorcycle Rally. Organizers expect attendance at this week's Sturgis Motorcycle Rally to top the estimated 466,000 who made the annual trek last year. The 74th rally starts Monday and runs through Sunday. (AP Photo/Toby Brusseau) Toby Brusseau AP

Riders flood the streets of Sturgis, S.D., for the opening day of the 74th Annual Motorcycle Rally on Monday, Aug. 4, 2014. Organizers expect attendance at this week's Sturgis Motorcycle Rally to top the estimated 466,000 who made the annual trek last year. The 74th rally starts Monday and runs through Sunday. (AP Photo/Toby Brusseau) Toby Brusseau AP

Riders flood the streets of Sturgis, S.D., for the opening day of the 74th Annual Motorcycle Rally on Monday morning, Aug. 4, 2014. Organizers expect attendance at this week's Sturgis Motorcycle Rally to top the estimated 466,000 who made the annual trek last year. The 74th rally starts Monday and runs through Sunday. (AP Photo/Toby Brusseau) Toby Brusseau AP

Lance Armstrong, left, readies his motorcycle as Sturgis Mayor Mark Carstensen observes on Monday, Aug. 4, 2014. Armstrong rode as the official Grand Marshall in the Annual Mayor's Ride during the 74th Annual Motorcycle Rally. Organizers expect attendance at this week's Sturgis Motorcycle Rally to top the estimated 466,000 who made the annual trek last year. The 74th rally starts Monday and runs through Sunday. (AP Photo/Toby Brusseau) Toby Brusseau AP

Lance Armstrong, left, readies his motorcycle as Sturgis Mayor Mark Carstensen observes on Monday, Aug. 4, 2014. Armstrong rode as the official Grand Marshall in the Annual Mayor's Ride during the 74th Annual Motorcycle Rally. Organizers expect attendance at this week's Sturgis Motorcycle Rally to top the estimated 466,000 who made the annual trek last year. The 74th rally starts Monday and runs through Sunday. (AP Photo/Toby Brusseau) Toby Brusseau AP

Riders flood the streets of Sturgis, S.D., for the opening day of the 74th Annual Motorcycle Rally on Monday, Aug. 4, 2014. Organizers expect attendance at this week's Sturgis Motorcycle Rally to top the estimated 466,000 who made the annual trek last year. The 74th rally starts Monday and runs through Sunday. (AP Photo/Toby Brusseau) Toby Brusseau AP

Lance Armstrong, right, leads a group of motorcyclists outside of Sturgis, S..D for the Annual Mayor's Ride during the 74th Annual Motorcycle Rally, on Monday, Aug. 4, 2014. Organizers expect attendance at this week's Sturgis Motorcycle Rally to top the estimated 466,000 who made the annual trek last year. The 74th rally starts Monday and runs through Sunday. (AP Photo/Toby Brusseau) Toby Brusseau AP

The city streets of Sturgis are lined with motorcycles days before the official kickoff of the 74th Annual Sturgis Motorcycle Rally in Sturgis, S.D, on Friday afternoon, August 1, 2014. Toby Brusseau AP

"Bear" Adams, of Daytona Beach, Fla., waits to card patrons of The Dungeon Bar, days before the official kickoff of the 74th Annual Sturgis Motorcycle Rally in Sturgis, S.D, on Friday, August 1, 2014. Toby Brusseau AP